A Pentagon release of new UFO footage has revived the question of whether aliens could realistically travel to Earth.

NASA engineers spun next-gen Mars helicopter blades past Mach 1 without shattering them. See how JPL unlocked the future of alien flight.

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

On May 22, 2026, the Pentagon released a second batch of previously classified photos and videos showing what appear to be ...

This Pride month, PEOPLE staffers are picking up books that highlight the big, beautiful LGBTQ+ community in all of its rich ...

From Darth Vader to Agent Smith, Thanos to the Xenomorph, these sci-fi villains are why we love the bad guys. Here are the ...

Texas conjures up images of cowboys, outlaws, ranches, and football, just like the series in this ranking of the best TV ...

To assess the plausibility of alien visitors, it’s necessary to understand the obstacles that an extraterrestrial vessel would need to overcome to reach Earth ...

"Superman: Man of Tomorrow" set leaks reveal the special Lex Luthor Warsuit and effects of the battle between him and ...

There are all sorts of things flying around the universe that we earthlings haven't yet figured out how to identify.